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RESP 211 ABG & O2
Question | Answer |
---|---|
The oxyhemoglobin dissociation curve depicts the relationship ________________________. | Between percentage saturation of oxygen and partial pressure of oxygen in arterial blood. |
Calculate a patient's arterial oxygen content if HB=11 gm%, PaO2=90 mmHg, and SaO2=80%. | CaO2=(Sat% x HB x 1.34) + (PaO2 x .003), answer 12.2% |
Prior to TX, PT ABG were pH 7.37, PaO2 50 mmHg, PaCO2 75 mmHg.The Dr. ordered high flow O2 via non rebreathing mask.Over the next 4 hrs, PT became somewhat confused, lethargic, and breathing is shallow and slow. This is consistent of | loss of hypoxic drive |
A state of acidemia exists when:A.the HCO3 is >24 mEq/L, B.the blood pH is <7.35, C.the blood pH is 7.45, D.the HCO3 is <24 mEq/L. | B. the blood pH is <7.35 |
Calculate the PAO2 breathing ambient air at an Indian village in the Peruvian Andes, barometric pressure is 400 mmHg. | PAO2 = .21(400-47). PAO2 is 74 mmHg. |
The following ABG results from a PT who is spontaneously breathing room air: PaO2 55mmHg, PaCO2 58mmHg, pH 7.36, HCO3 32 mEq/L. Describe PT condition. | Compensated respiratory acidosis |
Which measurement best assess the presence or absence of ventilatory failure? A.PaCO2, B.PaO2, C.pH, or D.HCO3 | A. PaCO2 |
Which of the following would be inconsistent with respiratory alkalosis? A.pH 7.57, B. PaCO2 30mmHg, C. pH 7.63, D. PaCO2 42mmHg | D. PaCO2 of 42 mmHg |
When the blood PCO2 decreases, the O2 dissociation curve shifts to the ______. A.right & P50 decreases, B.left & P50 increases, C.right & P50 increases, D.left & P50 decreases | D.left & P50 decreases |
Interpret the following ABG data: pH 7.17, PaCO2 42mmHg, PaO2 100mmHg, and HCO3 16 mmol/L. | acute metabolic acidosis |